Extension clutch control



H. S. MYERS. EXTENSION CLUTCH CONTROL.

APPLICATION FILED FEB. 15. 1922.

1,418,265. 7 Patented May 30, 1922.

EXTENSION CLUTCH CONTROL.

To all witom it may concern:

Be it known that I, HARRY S. MYERS, a

citizen of the United States, residing at Van, .in the county of Venangoand State of Pennsylvania, have invented certain new and usefulImprovements in Extension Clutch Controls, of which the following is aspecification.

This invention relates to an GXtGHSlOtH clutch control for motorvehicles, and more particularly to a lever and connections by means ofwhich the clutch pedal of a Fordson tractor'may be depressed by anoperative standing at a point in rear of the tractor.

Standard forms of tractors are quite generally equipped with a powershaft extending from-the transmission mechanism to a hpoint outside ofthe tractor body, which shaft is equipped with a belt pulley adapted todrive machinery of differentkinds. The

' driven machinery may be located either to 1 bolt pulley the front ofor to the rear of the tractor, and it is desirable to have the controlmeans for the clutch: pedal extend to a point where an operative on theground can readily depress the pedal and stop the rotation of the to.out off the power from the piece of machinery. I

- Whiie my' invention may be employed with a variety of forms oftractors and machinery driven thereby, I have "chosen for ,thepurpose ofillustration its use in connection with a hoisting attachment upon therear of a tractor of the Fordson type.

The object of my invention is the provision of an extension control fora clutch pedal for a tractor that the power of the belt pulley may becut ofi" from a point other than the'drivers seat. A further object isthe provision of" such control extending to the rear ofa-tractor andmounted in suitable bearings rovided upon the tractor and its associateparts. A further object of'the 1nvention is. the provision of means,whereb the clutch eda down inde nitely withoutthe attendants atmay bedepressed andheld tentiorLlyA further object is the provision in such anextension control of a connection betw'eenthe control elements and theclutch pedal, which will permit the pedal to be depressedwithoutdisturbing the parts of the control"mechanism. v

Other objects and advantages of the inventionwill medium of a chain 15.V v

The gear 14 constitutesthe-ma in driving Specification of LettersPatent. I Patented May 36, 1922; Application filed February 15, 1922.Serial No. 536,747. I

hereinafter appear-in the following description and the novel featuresthereof will be particularly pointed out in the appended claims.

ike reference numerals throughout the several figures of the drawings,in which-- s Figure 1 is a side elevation of a t-ractiir rear end with awheel removed showing my extension clutch control mounted upon thetractor in connection with a hoistingat.- tachment,

Figure 2 is a rear elevation of a small section of the hoistingattachment showing the rear bearing for the control lever, and

Figure 3 is a section taken on the line 33 of Figure 1 showing theconnection between the extension'clutch control and the pedal andthe'means whereby the pedal may be held down indefinitely upon the partof the operative.

It will be understood that the principles of my invention may beembodied in a variety offorms, and that the present embodi It is,however,

ment 'is merely indicative.

practical in conone which has been found struction and. operation.

In Figure 1 is shown in elevation the rear portion of a Fordson tractor10 with one of the tractive wheels 11' removed. Such a tractor isequipped with a power shaft 12 on which is shown mounted a sprocketpinion 18 driving a sprocket gear 14 through the element of the hoistingattachment, which comprises a frame 16 shown herein as mount.- 3"" edupon the differential housing 1701' the tractor. The numeral 18indicates 'an-end of a hoisting drum mounted upon a shaft 19 (see Figure2). From the frame 16 there extends a short connecting member QO'supporting-one end of a guard 21. This connector is firmly secured by abolt which is used to mount the bearing 22 on thefralne.

The clutch pedal 23 comprises a lever 24 extending to the rear anddownwardly and provided .with a footrest 25, the wholedesigned to bedepressed by the foot of an operative of the tractor when driving thesame from his position upon theseat. Ilpon a depression of this pedalthe clutch is re leased and the power cut ofl" from the shaft 12.

indicate like parts Without attention advantageous,

eye 27 and the bearing aperture 28 there passes a lever 29 pro- ,videdat its rear end with a hand portion 30 bent rearwardly and upwardly,occupying the position shown in Figures 1 and 2 while the clutch pedalis lifted as shown. At the opposite vend of this lever forward of theeye 27, it is bent to form the crank end 31 upon which is mountedwashers 32, 32, spacing an eye 33, all of which parts are held upon thecrank end by a pin 34.

The eye 33 is the lower end of a link 35, which is bent back upon itselfto form a hook 315 which engages over thearm 2a 'of the clutchpedal.

A limited amount of lateral movement of the lever 29 in its bearings maynot be disbut in order to control the amount thereof, I have provided acollar 37 held by a setiscrew'upon the'lever' at one side of the bearingeye 27 a lateral movement of the lever.

-'of the tractor, when it is desired hotreturn under the influence ofthe ,thefspring will only end of the strap 26. has been and it "will beappreciated' that the face .8 of the crank end lyingwto theopposite sideof the bearing eye 27 will with the collar define the limits of Or thiscollar may be omitted and the hand end 30 of the lever bent close to thebearing aperture 28 to define the limit in one direction.

' The operation of the extension clutch control should beclear from theforegoing description An operator standing at the rear to cut off theower derived -from.the 'shaft 12, pushes the iiandle portion 30 in thedirection of the arrow of'.;Figure 2, which causes the crank ,to beturned in the direction of the arrow of Figure 3 carrying with itthrough the lllllC 35 the pedal controlling the clutch of the tractortransmission mechanism. It will be understood that if the crank isthrown over to=the limit of its movement, as shown by the dotted lineposition of Figure 3, it will clutch spring, as it has passed its deadcenter and tend to maintain it there. In this position of the parts thecrank end 31 will lie against the body of the tractor and the clutchwill be held indefinitely in that position. To aid in the securingofthis relationship of parts, the lower bent slightly away from thetractor body, as heretofore explained.

[It will also be appreciated that the hook 36 is of such size andconfiguration that the clutch pedal might be depressed by the foot ofadriver of the tractor without carrying 'with "it the crank end 31 ordisengaging the hook from" the pedal. There is also a slight freedom ofmovement of the eye 33 upon the crank end which assists in attainingthese desirable results. i In making and assembling'my extension clutchcontrol, the crank end 31 is first formed at one end of a straight rodand the hook 35 mounted thereon. The straight end of the rod is thenpassed through the eye 27 and the collar 37 (if one is to be used),after which the handle end of the lever is shaped by bending at theproper points.

In attaching the lever to the machine, the handle end is first passedthrough the bearing eye 28, the bends therein being upon such an angleto enable this to be readily done; the strap 26 is then attached to thedifferential housing by removing the necessary the housing. To attachthe hook to the pedal it is necessary to 23 to the limit and to throwthe crank end to the limit of its upward movement by manipulating thehandle end in the direction to that of the arrow in Figure 2. The bookmay then be slipped over the arm 24 of the pedal. I

Having described my invention, what I claim as new and desire to secureby Letters Patent is: a

1. The combination with a tractor having .an automotive organizationcomprising a motor, propelling wheels, and. mechanism for transmittingpower from motor to the wheels including a clutch, of a machine separatefrom the said tractor, transmission mechanism under the control of saidclutch for driving said separate machine from the motor of the tractor,and means for controlling the movements of said clutch from a point nearsaid separate machine.

2. The combination with a tractor having an automotive organization anda shaft for supplying ower from said tractor, of a separate mac inemounted upon said tractor and adapted to be driven from said powershaft, and means for controlling the power shaft comprising the tractorclutch and an extensioncontrol for said clutch extending to a pointwithin easy reach ofthe operative of said separate machine.

3. The combination With a tractor having an automotive organization anda shaft for supplying power from said tractor, of a separate machinemounted upon the rear of the tractor body and adapted to be driven fromsaid power shaft, and means for-contractor clutch and an extensioncontrol for said clutch mounted in bearings upon said tractor and saidseparate machine and extending rearwardly whereby an operative standingat the rear of the tractor may control the movements of the separatemachine.

bolts and substituting longer ones which pass through apertures in thestrap and into both depress the pedal trolling the power shaftcomprising the to said separate machine,

4. An extension control for tractor clutches comprising a rod mounted inbearings carried by the tractor, acrank at one end of said rod, aconnection between said crank and the tractor clutch pedal, and a handleportion rod.

5. An extension clutch control for tractors comprising a rod; a crankformed at one end of said rod, bearings upon said tractOr for mountingsaid rod close to the body of said tractor, whereby said crank end mayrest against said body,- a handle portion at the opposite end of saidrod, and a connec-, tion between said crank end and the clutch pedal ofsaid tractor, whereby upon the manipulation of said crank the clutchpedal at the opposite end of said will be depressed and upon a continuedmovement of the. crank the clutch pedal will he held depressed.

6. An extension clutch control for tractor gage the tractor clutchpedal, and a'llandle 30 upon the opposite end of said rod.

In testimony whereof I affix my signature.

HARRY MYERS;

